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Finding the Fourth Proportional to 304,276.79, 419,760.54 and 196,881.45

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Solution

The fourth proportional to 304,276.79, 419,760.54 and 196,881.45 is: 271,604.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,276.79 : 419,760.54 = 196,881.45 : x
  2. Step 2: Convert to fraction form
    304,276.79/419,760.54 = 196,881.45/x
  3. Step 3: Cross multiply
    304,276.79x = 419,760.54 × 196,881.45
  4. Step 4: Simplify right side
    304,276.79x = 82,643,063,767.98
  5. Step 5: Solve for x
    x = 82,643,063,767.98/304,276.79
  6. Step 6: Final answer
    x = 271,604.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.